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injector open time? 
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LQFP112 - Up with the play
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Joined: Fri Feb 01, 2013 4:18 pm
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Location: Jersey City, USA
Guys, what is the realistic model of a fuel injection in terms of fuel_amount as function of powered_time?

I mean there is CC value, but I guess there is also some time to open it? How much difference does actual voltage make?

Please share your experience. If that matters, mine are Denso like 230cc #195500-2180

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Thu Aug 22, 2013 1:55 am
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A big difference. You MUST use a curve and you MUST test YOUR injectors with YOUR fuel pressure and YOUR wiring and YOUR inj driver circuit, or it's wrong. http://builds.freeems.org/firmware/dev/ ... tml#l00132

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Thu Aug 22, 2013 2:07 am
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LQFP112 - Up with the play
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Joined: Fri Feb 01, 2013 4:18 pm
Posts: 147
Location: Jersey City, USA
And how do you test this exactly? :)

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Thu Aug 22, 2013 2:18 am
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I plan to test mine with a 500w variac and 50A 12V transformer powering my vehicle instead of a battery, but through 1 Farad of capacitance. This should give me complete control over voltage at which point I can simply adjust until changing voltage doesn't change the wideband reading.

_________________
DIYEFI.org - where Open Source means Open Source, and Free means Freedom
FreeEMS.org - the open source engine management system
FreeEMS dev diary and its comments thread and my turbo truck!
n00bs, do NOT PM or email tech questions! Use the forum!
The ever growing list of FreeEMS success stories!


Thu Aug 22, 2013 2:59 am
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